Lathe.



E. H. SHELDON.

LATHE. APPLIGATION FILED smmzo, 1901.

Patented Deo. 22, 1908.

EDGAR H. sHELnoN, oF`oHI o.ieo, rLLro1s.

LATHE.` f

f Specification of Letters Patent. v Application filed September .20, 1901.- Serial No. 75,8l9'7.

Patented Dec# .22, 1908.

. To all who-m it may concern.'

Be itknown that I, EDGAR H.ISHELDN,

`'citizenof the United States, residingat Chicago, 1n the county of Cook and State of Illi-y tion of lathe.

1101s, have invented a certain new and usefu'l Im roven-lent in Lathes, l(Case`2,) of which t e' following isa full, clear, concise, and exact description, reference being had l to the accompanying drawings, formingv a -1o part of this speciiication' The obj ect .of my invention is to provide la slmple, practlcalf'and inexpensive construc In the accompanying drawings, Figure 1 1s a side elevation of the upper portion of a lathe embodyingr mv invention; Fig. 2 is an end view of the left vhand end ofthe lathe shown in'Fig.1; Figs. 3 and Llare vertical` sections taken on lines 3-3 and 4-4 re-t` and the rest 9 is locked to the carriage. 75

spectivelyin Fig. 1. l

The lathe which I have shown in the drawings to illustrate my invention, is provided with end uprights A, and A which are conl j veniently madel fork-shaped so as to provvide each'of them with two,.legs. Upright portions a., a are secured to the uprights'A, A A pair of horizontal rolds or bars B, B are extended between the uprights A and A and firmly' secured thereto. The rods or bars4 B, B are desirably cold rolled shafting,

although they can of course, b e made of `any other material. They are preferably secured to the uprights A, A by casting them into same? j 'The tail stock C consists of an lupright portion 1 having recesses adapted to accom` modate the horizontal bars B, B, as shown in Fig. 2, and a clamping section 2 also having recesses for said bars B, B', and a clamping .8 passed through the lower' ortion of f upright 1 and through the c am 2 a provided with al small hand Whee 4.

' he recess for the lower bar B formed at the lower ends of the upright 1 and clamp 2, is open at the bottom so as to permit the proper arrangement of the tail stock upon the bars and the removal of the same therefrom. Thel adjustment of the tail stoclris afccom'plishedby turning the Wheel 4 to an extent to loosen the clamp 2 and sliding thev stock'along the barsB, .B",;.after Which'the Wheel 4 is again turnedtp clamp 'the`"devi ce `in position.

The carriage D consists of ari-angle piece 5 having horizontal and vertical portions, 'the A latter of which .is providedawith reces-ses 'for the bars B, B.,.a. clamping piece 6 alsoprovided with recesses for4 said bars,and. an adjusting bolt -7 and Wheel S'therefor. This general arrangement f clampingfto the hori- 60 zontal bars, is similar .to 4that-used in connection withA the tail stock, as previously described. The-horizontal portion of the angle' piece 5 is adapted to receive a rest 9 Which is secured thereto by a bolt 1() passing through 65 .said horizontal portion and into an opening providedfor it 1n the upper portion of the clamp'. The bolt 10 is heldin adjustment' @by a set screw 11. AThe adjustment of the clamp 6 by the hand Wheel 8,. it' Will be seen, 70-

Willalso adjust the bolt 10 so as to clamp the rrest l9 firmly upon the piece D. Thus by one adjustment of the lWheel 8\the carriage-is locked in adjustment alongjthe barsB, B,

It Will be seen that a -lathethus constructed, is exceedingly simple, and can be made at very low expense. Thenumber of parts is exceedingly small, the bed consisting simply of two uprights v and ranged bars extending. between the vsame. The necessity o'f employing rods having longitudinal' grooves, is avoided and thereby the great expense of 'cutting such lo gitudinal rooves 1n hard steel .,rods, is not* 'ncurredr a5 or the horizontal rods or bars comparatively 'inexpensive material, such as cold rolled shafting, can. be. employed and vby casting this into theuprights, the cost of constructing the bed` is madevery low. The head 9o stock and carriage can be chea ly made, ccnl sisting ofbiit few parts and t lese very simi le hat vI claimas my inventionl is I and a bed consisting of a couple of metal bars or rods, arranged one-abovetheother, sald sections having their ends embedded Vin upif rights, substantially as described,

2. The combination with a lathe bed lcon-= roe" sisting of a pair of bars or rods, oia vcarriage therefor, having a clamping device, whereofl the clampmg members are'arrangedy on opv posite sides of said bar or rod, and one of the same has aninclined transversely sliding con- 1054 nection with one of the bars or rods, means for drawing the clamping members together" vso as to cause a sliding movement relatively to said; member and bar or rod, and a re'st 'carried by said rv'carriage and connected With 1,10

two horizontally ar- 1. A lathe comprising apair of` uprights, l

said slidable clamping member, Whereby the rest is tightened at the same time the clamp is tightened, substantially as described.

3. The combination with a bed consisting of a pair of bars or rods arranged one above the other, of a carriage D having a portion 7 disposed at one side of said bars or rods, a

clamping member 6 located on the other side thereof, said clamping member 6 having an inclined lsurface cooperating With the upper bar or rod to permit a transversely sliding movement relatively thereto, a threaded adjusting device for connecting the clamp 6 6 against said bars or rods, a rest 9 carried by 15 the carriage, and a threaded bolt 10 extended between the clamp 6 and carriage 9, whereby the rest and carriage are simultaneously locked in position by the threaded device connecting the clamp 6 and portion 7 sub- 2e stantially as described.

In Witness whereof, l hereunto subscribe my. name this 16th day of Sept. A. D., 1901.

EDGAR H. SHELDON.

Witnesses A. MILLER BELFIELD, MAX W. FABEL. 

